SODIAL(R) 10 Pcs 6mm Shaft Hole Dia Knurled Grip Potentiometer Pot Knobs Caps Product Name : Potentiometer Control Knob;Knob Top Diameter : 11mm / 0.43" Knob Base Diameter : 14.5mm / 0.57";Shaft Insert Diameter : 6mm / 15/64" Knob Total Height : 14mm / 0.55";Material : Plastic Main Color : Black, Yellow;Weight : 12g